By "green" are you referring to the radioactive sludge it produces? ;) I'm not anti-nuclear energy, but it comes with a host of problems and costs that many nuclear energy supporters tend to gloss right over. Chief among them is that no one wants these facilities in their backyard or anywhere near their backyard. Part of this is just NIMBY-ism, but the other part is a well-warranted fear of an accident or negligence leading to contamination. It's all great until the private equity firms take over.